1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // type_traits 11 12 // is_destructible 13 14 #include <type_traits> 15 16 #include "test_macros.h" 17 18 template <class T> 19 void test_is_destructible() 20 { 21 static_assert( std::is_destructible<T>::value, ""); 22 static_assert( std::is_destructible<const T>::value, ""); 23 static_assert( std::is_destructible<volatile T>::value, ""); 24 static_assert( std::is_destructible<const volatile T>::value, ""); 25 } 26 27 template <class T> 28 void test_is_not_destructible() 29 { 30 static_assert(!std::is_destructible<T>::value, ""); 31 static_assert(!std::is_destructible<const T>::value, ""); 32 static_assert(!std::is_destructible<volatile T>::value, ""); 33 static_assert(!std::is_destructible<const volatile T>::value, ""); 34 } 35 36 class Empty {}; 37 38 class NotEmpty 39 { 40 virtual ~NotEmpty(); 41 }; 42 43 union Union {}; 44 45 struct bit_zero 46 { 47 int : 0; 48 }; 49 50 struct A 51 { 52 ~A(); 53 }; 54 55 typedef void (Function) (); 56 57 struct PublicAbstract { public: virtual void foo() = 0; }; 58 struct ProtectedAbstract { protected: virtual void foo() = 0; }; 59 struct PrivateAbstract { private: virtual void foo() = 0; }; 60 61 struct PublicDestructor { public: ~PublicDestructor() {}}; 62 struct ProtectedDestructor { protected: ~ProtectedDestructor() {}}; 63 struct PrivateDestructor { private: ~PrivateDestructor() {}}; 64 65 struct VirtualPublicDestructor { public: virtual ~VirtualPublicDestructor() {}}; 66 struct VirtualProtectedDestructor { protected: virtual ~VirtualProtectedDestructor() {}}; 67 struct VirtualPrivateDestructor { private: virtual ~VirtualPrivateDestructor() {}}; 68 69 struct PurePublicDestructor { public: virtual ~PurePublicDestructor() = 0; }; 70 struct PureProtectedDestructor { protected: virtual ~PureProtectedDestructor() = 0; }; 71 struct PurePrivateDestructor { private: virtual ~PurePrivateDestructor() = 0; }; 72 73 #if TEST_STD_VER >= 11 74 struct DeletedPublicDestructor { public: ~DeletedPublicDestructor() = delete; }; 75 struct DeletedProtectedDestructor { protected: ~DeletedProtectedDestructor() = delete; }; 76 struct DeletedPrivateDestructor { private: ~DeletedPrivateDestructor() = delete; }; 77 78 struct DeletedVirtualPublicDestructor { public: virtual ~DeletedVirtualPublicDestructor() = delete; }; 79 struct DeletedVirtualProtectedDestructor { protected: virtual ~DeletedVirtualProtectedDestructor() = delete; }; 80 struct DeletedVirtualPrivateDestructor { private: virtual ~DeletedVirtualPrivateDestructor() = delete; }; 81 #endif 82 83 84 int main() 85 { 86 test_is_destructible<A>(); 87 test_is_destructible<int&>(); 88 test_is_destructible<Union>(); 89 test_is_destructible<Empty>(); 90 test_is_destructible<int>(); 91 test_is_destructible<double>(); 92 test_is_destructible<int*>(); 93 test_is_destructible<const int*>(); 94 test_is_destructible<char[3]>(); 95 test_is_destructible<bit_zero>(); 96 test_is_destructible<int[3]>(); 97 test_is_destructible<ProtectedAbstract>(); 98 test_is_destructible<PublicAbstract>(); 99 test_is_destructible<PrivateAbstract>(); 100 test_is_destructible<PublicDestructor>(); 101 test_is_destructible<VirtualPublicDestructor>(); 102 test_is_destructible<PurePublicDestructor>(); 103 104 test_is_not_destructible<int[]>(); 105 test_is_not_destructible<void>(); 106 test_is_not_destructible<Function>(); 107 108 #if TEST_STD_VER >= 11 109 // Test access controlled destructors 110 test_is_not_destructible<ProtectedDestructor>(); 111 test_is_not_destructible<PrivateDestructor>(); 112 test_is_not_destructible<VirtualProtectedDestructor>(); 113 test_is_not_destructible<VirtualPrivateDestructor>(); 114 test_is_not_destructible<PureProtectedDestructor>(); 115 test_is_not_destructible<PurePrivateDestructor>(); 116 117 // Test deleted constructors 118 test_is_not_destructible<DeletedPublicDestructor>(); 119 test_is_not_destructible<DeletedProtectedDestructor>(); 120 test_is_not_destructible<DeletedPrivateDestructor>(); 121 //test_is_not_destructible<DeletedVirtualPublicDestructor>(); // previously failed due to clang bug #20268 122 test_is_not_destructible<DeletedVirtualProtectedDestructor>(); 123 test_is_not_destructible<DeletedVirtualPrivateDestructor>(); 124 125 // Test private destructors 126 test_is_not_destructible<NotEmpty>(); 127 #endif 128 129 } 130
